Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Beverage or beverage concentrate
Patent
1982-01-05
1987-05-26
Golian, Joseph
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Beverage or beverage concentrate
426435, A23F 318
Patent
active
046685251
ABSTRACT:
Dry tea leaf is extracted with aqueous solvent, preferably by countercurrent procedures at atmospheric pressure, the spent tea leaf is separated from the extract, the spent tea leaf is acidified to a pH within the range of 2.0 to 3.0, the acidified spent tea leaf is further extracted with aqueous solvent at temperatures of about 140.degree.-170.degree. C. for at least 4 minutes at pressures of about 80-100 psig to provide a high temperature/high pressure acid extract, and said high temperature/high pressure acid extract is used as aqueous solvent in the earlier extraction procedures to provide a high extraction yield of good quality extract.
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Whistler et al, Industrial Gums, 2nd Ed., 1973, Academic Press: New York, p. 447.
Pentauro, Soluble Coffee Manufacturing Processes, 1969, Noyes Development Corporation: Park Ridge, N.J., pp. 42-43.
Pentauro, Soluble Tea Production Processes, 1970, Noyes Data Corp.: Park Ridge, N.J., p. 28.
Golian Joseph
Thomas J. Lipton Inc.
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